CI 1.7svn array form_validation problem

[eluser]CI shocki[/eluser]
Hi guys,

I have the following validation config:

Code:

array(
   'field' => 'description_teaser[]',
   'label' => '',
   'rules' => ''
),...

in my view I have

Code:

<textarea name="description_teaser[]" id="elm1"><?php echo set_value('description_teaser[]'); ?></textarea>

When repopulating the form this does not work. Instead of the expected result every textarea field ist filled with the text "array"

Any ideas?

Regards shocki